today they hear from the top intelligence folks from the cia, the fbi, the national intelligence office and they are learning some of the time line. we are told they're getting a sense of what was known, and why did this whole controversy bubble up about a video, a spontaneous protest or an intentional act of terror, which is such a part of the political dynamic here. what we hear from members who were in the earlier briefing, the senate briefing is happening right now, is that there was a difference in the nature of the attacks. the first wave of the attack appeared more chaotic. the second attack went on over a period of seven hours appeared far more coordinated with command and control, the ability to bring weaponry, things like that, that cause some of this unease about how to decide who was behind it and what was going on. when you talk about frustrations, there are those political frustrations but also a lot of frustrations here about wanting to get to the bottom of it to know what happened, why chris stevens, the ambassador, his pleas for additional security, his warnings about d